Price update when selecting bundle (Rapi bundle)

[domiflex]

Hello, I can't figure it out how can i get an updated price when selecting 2x or 3x quantity. The price should show $23.99 or $20.99 at the top but stays always at $29.99. Does anyone have solution for this?

https://zetaclick.com/products/fursweep

I am using debutify theme and the bundle for quantity discount is Rapi bundle